/*!A cross-platform build utility based on Lua
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * Copyright (C) 2015-present, TBOOX Open Source Group.
 *
 * @author      ruki
 * @file        wait.c
 *
 */

/* //////////////////////////////////////////////////////////////////////////////////////
 * trace
 */
#define TB_TRACE_MODULE_NAME                "process.wait"
#define TB_TRACE_MODULE_DEBUG               (0)

/* //////////////////////////////////////////////////////////////////////////////////////
 * includes
 */
#include "prefix.h"

/* //////////////////////////////////////////////////////////////////////////////////////
 * implementation
 */

// ok, status = process.wait(proc, timeout)
tb_int_t xm_process_wait(lua_State* lua)
{
    // check
    tb_assert_and_check_return_val(lua, 0);

    // is pointer?
    if (!xm_lua_ispointer(lua, 1))
    {
        // error
        lua_pushfstring(lua, "invalid argument type(%s) for process.wait", luaL_typename(lua, 1));
        lua_error(lua);
        return 0;
    }

    // get the process
    tb_process_ref_t process = (tb_process_ref_t)xm_lua_topointer(lua, 1);
    tb_check_return_val(process, 0);

    // get the timeout
    tb_long_t timeout = (tb_long_t)luaL_checkinteger(lua, 2);

    // wait it
    tb_long_t status = 0;
    tb_long_t ok = tb_process_wait(process, &status, timeout);

    // save result
    lua_pushinteger(lua, ok);
    lua_pushinteger(lua, status);

    // ok
    return 2;
}
